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Osa Weather (Next 3 days): The snow forecast for Osa is: A dusting of snow on Mon night. Freezing level rising with drizzle on Wed afternoon. Freeze-thaw conditions (max 4°C on Wed morning, min -2°C on Mon night). Winds increasing (light winds from the WSW on Tue night, fresh winds from the WNW by Wed night).
Osa Weather (Days 4-6): Moderate rain (total 11.0mm), heaviest on Sat afternoon giving way to a moderate fall of snow, heaviest on Sat night. Freeze-thaw conditions (max 4°C on Fri afternoon, min -4°C on Sat night). Winds increasing (light winds from the WNW on Thu night, gales from the W by Sat afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -1 |  | ||||
| Bottom Lift: | 2 | |
Latest snow reports near Osa:
Monday 5 | Tuesday 6 | Wednesday 7 | Thursday 8 | Friday 9 | Saturday 10 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | |  |  | | | |  | |  |  | | |  | |  | |
light snow | light snow | light snow | snow shwrs | some clouds | cloudy | some clouds | snow shwrs | light snow | cloudy | cloudy | some clouds | clear | clear | some clouds | light rain | light snow | mod. snow | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 9 | |
— | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 3 | 8 | — | |
max °C | 2 | 2 | -1 | 2 | 2 | -1 | 4 | 4 | 1 | 1 | 0 | -3 | 3 | 4 | 1 | 4 | 3 | -3 |
min °C | 2 | 0 | -2 | 0 | -2 | -2 | 2 | 2 | -2 | 0 | -2 | -3 | 0 | -1 | -1 | 3 | -1 | -4 |
-4 | -6 | -8 | -4 | -5 | -5 | -2 | -4 | -10 | -6 | -7 | -7 | -4 | -6 | -7 | -3 | -10 | -14 | |
85 | 84 | 92 | 80 | 64 | 62 | 77 | 71 | 82 | 76 | 77 | 83 | 56 | 57 | 82 | 93 | 97 | 84 | |
1000 | 800 | 550 | 650 | 900 | 600 | 950 | 1050 | 650 | 600 | 650 | 300 | 650 | 1050 | 900 | 1200 | 1150 | 200 | |
 | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — |
 | — | 5:13 | — | — | 5:14 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — |
A dusting of snow on Mon night. Freezing level rising with drizzle on Wed afternoon. Freeze-thaw conditions (max 4°C on Wed morning, min -2°C on Mon night). Winds increasing (light winds from the WSW on Tue night, fresh winds from the WNW by Wed night).
Moderate rain (total 11.0mm), heaviest on Sat afternoon giving way to a moderate fall of snow, heaviest on Sat night. Freeze-thaw conditions (max 4°C on Fri afternoon, min -4°C on Sat night). Winds increasing (light winds from the WNW on Thu night, gales from the W by Sat afternoon).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 3 Jan 2026 |
| Snow Alerts | Create Alert |
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.2 | Powder days Fresh snow, limited sun, any wind. |
0.1 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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